Data Warehouse Fundamentals for Beginners (Udemy.com)
Best Practices and Concepts for Architecture and Dimensional Design
Created by: Alan Simon
Last updated March 2020
Our take
Based on the ratings of 35,119 students, a sample of their written reviews and the syllabus, as the course stood in March 2020. No course pays to be reviewed.
The course is a short, concept-first introduction to data warehousing. It runs about 5 hours across 68 lectures, and the biggest block, around 85 minutes, goes to fact tables and dimensions. Architecture options, loading data, slowly changing dimensions and ETL design fill most of the rest. The syllabus shows no coding exercises and no tool demos. It is pitched at business analysts, data engineers and database designers who have never built a warehouse, and it asks only for basic SQL, mainly how CREATE TABLE works.
Reviewers like the step-by-step pacing and say the explanations are clear for people with no background. Two reviewers compare it to a university class, and another calls it a solid base before moving on to data engineering. The teaching from Alan Simon splits opinion, though. Beginners find it easy to follow, but the lower-rated reviews call the delivery dry and monotonous, with hardly a pause between points. Others want more practical examples, diagrams, ETL scenarios beyond Type 1 and Type 2 dimensions, and topics like junk and degenerate dimensions.
The last update was March 2020, so cloud warehouses get little attention, and a reviewer says as much. Still, about 88 percent of the 35,119 ratings are four or five stars, and more than 132,000 students have enrolled. It is a sensible first step if you need the vocabulary and design logic. Anyone who wants to build something should plan a hands-on course afterward.
Pros
- Short at about 5 hours, so the core ideas fit into a weekend or two
- Fact tables, dimensions and slowly changing dimensions get the most time
- Reviewers say the step-by-step explanations work for people with no background
- Quizzes and assignments between sections check that the ideas stuck
Cons
- Delivery is called dry and monotonous, with few pauses between points
- Last updated in 2020, so cloud warehouses get little attention
- Theory only: no ETL or warehouse tool is used and practical examples are thin
Great fundamentals level course, that covers most of the topics you would come across and gives you a good base for further learning.
Truly beginner on warehousing, but basic SQL and CREATE TABLE are expected. No programming needed, and no tool training either.
What you will learn
- Master the techniques needed to build a data warehouse for your organization.
- Determine your options for the architecture of your data warehousing environment.
- Apply the key design principles of dimensional data modeling.
- Combine various models and approaches to unify and load data within your data warehouse.
Course content
10 sections · 68 lectures · 5.2 hours of video 4 quizzes, 5 assignments, 1 article
- 1Welcome 3 free previews3 lectures · 10 min
- 2Data Warehousing Concepts 2 free previews7 lectures · 1 quiz · 17 min
- 3Data Warehousing Architecture9 lectures · 1 quiz · 46 min
- 4Bring Data Into Your Data Warehouse8 lectures · 1 quiz · 34 min
- 5Data Warehousing Design: Building Blocks 2 free previews8 lectures · 1 quiz · 41 min
- 6Design Facts, Fact Tables, Dimensions, and Dimension Tables 1 free preview14 lectures · 2 quizzes · 1.4 hours
- 7Managing Data Warehouse History Through Slowly Changing Dimensions7 lectures · 1 quiz · 32 min
- 8Designing Your ETL7 lectures · 1 quiz · 31 min
- 9Selecting Your Data Warehouse Environment3 lectures · 1 quiz · 11 min
- 10Conclusion2 lectures · 1 min
Who it is for
The instructor says it suits
- A business analyst, data engineer, or database designer, currently with little or no exposure to or experience with data warehousing, who desires to build a personal toolbox of data warehousing best practices and techniques.
- After completing this course, you will be ready to begin working on real-world data warehousing projects, either with expanded responsibilities as part of an existing role or to find a new position involving data warehousing. Example positions include data warehousing architect, dimensional data modeler, ETL architect and designer, and data warehousing business analyst.
What you need before you start
- A basic understanding of (but not necessarily programming experience with) relational databases and SQL fundamentals, specifically how you use the SQL CREATE TABLE statement to create data structures in a relational database.
How it compares
Against the other 371 rated Udemy courses in Data Analysis on CourseDuck:
- Rating4.5 out of 5higher than 49% of them
- Reviews35,119#5 of 372 by number of reviews
- Length5.2 hourslonger than 53% of them
- Last updatedMarch 2020earlier than 89% of them
Course Description
If you are a current or aspiring IT professional in search of sound, practical techniques to plan, design, and build a data warehouse or data mart, this is the course for you.
During the course, you’ll put what you learn to work and define sample data warehousing architectures and dimensional data structures to help emphasize the best practices and techniques covered in this course. Each section has either scenario based quiz questions or hands on assignments that emphasizes key learning objectives for that section’s material. This way, you can be confident as you move through the course that you’re picking up the key points about data warehousing.
To build this course, I drew from more than 30 years of my own data warehousing work on more than 40 client projects and engagements. I’ve been a thought leader in the discipline of data warehousing since the early 1990s when modern data warehousing came onto the scene. I’ve literally seen it all...and written about the discipline of data warehousing in books such as the original Data Warehousing For Dummies ® , along with articles, white papers, and as a monthly data warehousing columnist. I’ve led global consulting practices delivering data warehousing (and its related discipline, business intelligence) to some of the most recognizable brand name customers, along with smaller-sized organizations and governmental agencies. My own consulting firm, Thinking Helmet, Inc., specializes in data warehousing, business intelligence, and related disciplines. I’ve rolled up my sleeves and personally tackled every aspect of what you’ll learn in this course. I’ve even learned a few painful lessons, and have built a healthy share of “lessons learned” into the course material.
In this course, I take you from the fundamentals and concepts of data warehousing all the way through best practices for the architecture, dimensional design, and data interchange that you’ll need to implement data warehousing in your organization. You’ll find many examples that clearly demonstrate the key concepts and techniques covered throughout the course. By the end of the course, you’ll be all set to not only put these principles to work, but also to make the key architecture and design decisions required by the “art” of data warehousing that transcend the nuts-and-bolts techniques and design patterns.
Specifically, this course will cover:
Foundational data warehousing concepts and fundamentals
The symbiotic relationship between data warehousing and business intelligence
How data warehousing co-exists with data lakes and data virtualization
Your many architectural alternatives, from highly centralized approaches to numerous multi-component alternatives
The fundamentals of dimensional analysis and modeling
The key relational database capabilities that you will put to work to build your dimensional data models
Different alternatives for handling changing data history within your environment, and how to decide which approaches to apply in various situations
How to organize and design your Extraction, Transformation, and Loading (ETL) capabilities to keep your data warehouse up to date
Data warehousing is both an art and a science. While we have developed a large body of best practices over the years, we still have to make this-or-that types of decisions from the earliest stages of a data warehousing project all the way through architecture, design, and implementation. That’s what I’ve instilled into this course: the fusion of data warehousing art and science that you can bring to your organization and your own work. So come join me on this journey through the world of data warehousing!
Instructor Details
- 4.5 Rating
35,119 Reviews
Alan Simon
Alan Simon is a long-time authority on aligning transformational business process improvement initiatives with emerging data and analytics technology. He is the Managing Principal of Thinking Helmet, Inc., a boutique consultancy. In the past, Alan has led global and national consulting practices specializing in business intelligence and data warehousing. He is known for his engaging, innovative, and thought-provoking perspectives about the disciplines in which he specializes.
Alan is the author of 31 business and technology books, including the original edition of Data Warehousing For Dummies, 90 Days to the Data Mart, How to be a Successful Computer Consultant, and Data Warehousing and Business Intelligence for E-Commerce. His upcoming book The Business Hypothesis Imperative: Solving the Missing Link in Big Data, Analytics, and Data-Driven Insights is the culmination of more than 40 years as a technology professional working on the leading edge of data and analytics technologies.
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Reviews
By Diny Davis on 8/4/2026
It was a good refresher of concepts but I felt there should have been morescenarios covering the ETL deign part rather than limting it only for transactional Fact and Type 1 and 2 Dimensional
By Katri Keränen on 7/31/2026
Great fundamentals level course, that covers most of the topics you would come across and gives you a good base for further learning. The course is much like what you'd encounter in university/college and that suits me very well. I would've liked to hear more current points about data warehousing and cloud.
By Shubhanu Kumar on 7/26/2026
Course is good. As the instructor has already mentioned in course that it will be fundamental course, so please don't expect the instructor to use any warehouse or ETL tool in the course. It will build fundamental if you are planning to learn data warehouse tool such as synapse or Snowflake etc. There were some topics missing such types of dimension table(Junk, Confirmed Dimensions, Degenerate Dimensions etc)
By Parikshit Shinge on 7/19/2026
Thank you to the instructor. Great course for someone who needs to get into the Data Warehousing. Much of the course is theory based, however it covers most important parts which are used most frequently in the industry. The course was last updated in 2020, I would expect the instructor will add more topics which are necessary in today's changing world.
By Lakshmi Venkata Kotte on 6/11/2026
It is useful and Explanation is very clear. this course is the foundatation to build Data War house. Claery explanied each and every aspects of data Ware house.that a beginners needs to known. Thank you!
By Kevin Isaac Huerta Montero on 6/9/2026
The content is good, but the problem I find is the tone. It's very monotonous, and sometimes it's hard to follow what the instructor is saying; also, the examples could be explained better.
By Anonymized User on 5/6/2026
This course was amazing and exceeded my expectations. The content was well structured, easy to understand, and very useful. The explanations were clear and engaging, making the learning experience enjoyable and effective. I gained valuable knowledge and would definitely recommend this course to others.
By Abraham Eliseo Cruz Herrera on 4/22/2026
It's a very good and well explained course for beginners. Having this as a first step, it will be easier to work on the Design and Implementation of a Warehouse solution.
By Elessar Sandeep Jai on 3/8/2026
IT IS PERFECT MATCH FOR ME, THE TEACHER EXPLAINED EVERY SINGLE CONCEPT WITH IMPACT AND APPROPRATE EXAMPLE , EASY TO UNDERSTAND, UNLIKE OTHER COURSE , VERY BLIND TO TELL EVERYTHING THEN CODE. WHICH DOESNT SUIT MY OBJECTIVE OF UNDERSTAND HOW TO DESIGN DATA PIPELINE.
By Angela Spores on 1/2/2026
This course will help me better communicate with the engineers I work with as well as help improve my input into decision making building a stronger product strategy.
By Suraj.B . on 12/27/2020
1. The concepts are very new to me but sticking to the course is what helped me.
2. I actually liked the fact that the PPTs weren't shared which helped me note down things manually.
3. I had to increase the speed upto 1.75x to make the presentation sound more enthusiastic.
By Lucas Schick on 12/20/2020
This was an excellent way for me to get started in the world of Data Warehousing. I chose this course hoping it would be a general overview of the terms on concepts I needed to know, and I was not disappointed. A couple of the sections in the middle got a little long and wordy, but I have been in enough database design meetings to know that is just to be expected.
Overall I would highly recommend this to anyone looking for a starting point of learning the pieces and parts that make up a Data Warehouse environment.
Quality Score
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Overall Score : 90 / 100







